Merge branch 'pm-tools'

* pm-tools:
cpupower: Remove redundant error check
cpupower: bench: parse.c: Fix several minor errors
cpupower: mperf monitor: Correct use of ! and &
cpupower: Adjust MAINTAINERS file
PM / tools: cpupower: drop negativity check on unsigned value

MAINTAINERS

···
 F:	arch/x86/kernel/msr.c
 
 CPU POWER MONITORING SUBSYSTEM
-M:	Dominik Brodowski <[e-mail]>
 M:	Thomas Renninger <[e-mail]>
+L:	[e-mail]
 S:	Maintained
 F:	tools/power/cpupower/
 

tools/power/cpupower/bench/parse.c

···
 int prepare_config(const char *path, struct config *config)
 {
 	size_t len = 0;
-	char *opt, *val, *line = NULL;
-	FILE *configfile = fopen(path, "r");
+	char opt[16], val[32], *line = NULL;
+	FILE *configfile;
 
 	if (config == NULL) {
 		fprintf(stderr, "error: config is NULL\n");
 		return 1;
 	}
 
+	configfile = fopen(path, "r");
 	if (configfile == NULL) {
 		perror("fopen");
 		fprintf(stderr, "error: unable to read configfile\n");
···
 	}
 
 	while (getline(&line, &len, configfile) != -1) {
-		if (line[0] == '#' || line[0] == ' ')
+		if (line[0] == '#' || line[0] == ' ' || line[0] == '\n')
 			continue;
 
-		sscanf(line, "%as = %as", &opt, &val);
+		if (sscanf(line, "%14s = %30s", opt, val) < 2)
+			continue;
 
 		dprintf("parsing: %s -> %s\n", opt, val);
 
-		if (strncmp("sleep", opt, strlen(opt)) == 0)
+		if (strcmp("sleep", opt) == 0)
 			sscanf(val, "%li", &config->sleep);
 
-		else if (strncmp("load", opt, strlen(opt)) == 0)
+		else if (strcmp("load", opt) == 0)
 			sscanf(val, "%li", &config->load);
 
-		else if (strncmp("load_step", opt, strlen(opt)) == 0)
+		else if (strcmp("load_step", opt) == 0)
 			sscanf(val, "%li", &config->load_step);
 
-		else if (strncmp("sleep_step", opt, strlen(opt)) == 0)
+		else if (strcmp("sleep_step", opt) == 0)
 			sscanf(val, "%li", &config->sleep_step);
 
-		else if (strncmp("cycles", opt, strlen(opt)) == 0)
+		else if (strcmp("cycles", opt) == 0)
 			sscanf(val, "%u", &config->cycles);
 
-		else if (strncmp("rounds", opt, strlen(opt)) == 0)
+		else if (strcmp("rounds", opt) == 0)
 			sscanf(val, "%u", &config->rounds);
 
-		else if (strncmp("verbose", opt, strlen(opt)) == 0)
+		else if (strcmp("verbose", opt) == 0)
 			sscanf(val, "%u", &config->verbose);
 
-		else if (strncmp("output", opt, strlen(opt)) == 0)
+		else if (strcmp("output", opt) == 0)
 			config->output = prepare_output(val); 
 
-		else if (strncmp("cpu", opt, strlen(opt)) == 0)
+		else if (strcmp("cpu", opt) == 0)
 			sscanf(val, "%u", &config->cpu);
 
-		else if (strncmp("governor", opt, 14) == 0)
-			strncpy(config->governor, val, 14);
+		else if (strcmp("governor", opt) == 0) {
+			strncpy(config->governor, val,
+					sizeof(config->governor));
+			config->governor[sizeof(config->governor) - 1] = '\0';
+		}
 
-		else if (strncmp("priority", opt, strlen(opt)) == 0) {
+		else if (strcmp("priority", opt) == 0) {
 			if (string_to_prio(val) != SCHED_ERR)
 				config->prio = string_to_prio(val);
 		}
 	}
 
 	free(line);
-	free(opt);
-	free(val);
 
 	return 0;
 }

tools/power/cpupower/utils/cpufreq-set.c

···
 
 		printf(_("Setting cpu: %d\n"), cpu);
 		ret = do_one_cpu(cpu, &new_pol, freq, policychange);
-		if (ret)
-			break;
+		if (ret) {
+			print_error();
+			return ret;
+		}
 	}
 
-	if (ret)
-		print_error();
-
-	return ret;
+	return 0;
 }

tools/power/cpupower/utils/helpers/sysfs.c

···
 	close(fd);
 
 	value = strtoull(linebuf, &endp, 0);
-	if (value > 1 || value < 0)
+	if (value > 1)
 		return -EINVAL;
 
 	return value;

tools/power/cpupower/utils/idle_monitor/mperf_monitor.c

···
 	unsigned long long hwcr;
 	unsigned long min;
 
-	if (!cpupower_cpu_info.caps & CPUPOWER_CAP_INV_TSC)
+	if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_INV_TSC))
 		goto use_sysfs;
 
 	if (cpupower_cpu_info.vendor == X86_VENDOR_AMD) {